Method and apparatus for receiving PPDU through multiple RU in wireless LAN system

Abstract

Proposed are a method and apparatus for receiving a PPDU in a wireless LAN system. Specifically, a reception STA receives a PPDU from a transmission STA through a broadband and decodes the PPDU. The PPDU includes a control field and a data field. When the broadband is a 320/160+160 MHz band including first to fourth 80 MHz sub-channels, the first 80 MHz sub-channel includes a first 996 RU, the second 80 MHz sub-channel includes a second 996 RU, the third 80 MHz sub-channel includes a third 996 RU, and the fourth 80 MHz sub-channel includes a first 484 RU. The data field is received through a first multiple RU in which the first to third 996 RUs and the first 484 RU are aggregated.

What is claimed: 
     
       1. A method in a wireless Local Area Network (LAN) system, the method comprising:
 receiving, by a receiving station (STA), a Physical Protocol Data Unit (PPDU) through a broadband from a transmitting STA; and 
 decoding, by the receiving STA, the PPDU, 
 wherein the PPDU includes a control field and a data field, 
 wherein when the broadband is a 320 MHz band including first to fourth 80 MHz subchannels, 
 the first 80 MHz subchannel includes a first 996 resource unit (RU), 
 the second 80 MHz subchannel includes a second 996RU, 
 the third 80 MHz subchannel includes a third 996RU, 
 the fourth 80 MHz subchannel includes a first 484RU, and 
 wherein the data field is received through first multiple RUs in which the first to third 996RUs and the first 484RU are aggregated. 
 
     
     
       2. The method of  claim 1 , wherein the PPDU is received based on a non-Orthogonal Frequency Division Multiple Access (non-OFDMA) scheme,
 wherein the control field includes allocation information on the first multiple RUs, 
 wherein the first multiple RUs are obtained by puncturing 484RU in the fourth 80 MHz subchannel, 
 wherein each of the first to third 996RUs is a RU consisting of 996 tones, 
 wherein the 484RU is an RU consisting of 484 tones. 
 
     
     
       3. The method of  claim 1 , wherein one of the first to fourth 80 MHz subchannels is a primary 80 MHz channel, and the remaining three subchannels except for the primary 80 MHz channel are secondary 80 MHz channels,
 wherein the primary 80 MHz channel includes a primary 20 MHz channel, a secondary 20 MHz channel, and a secondary 40 MHz channel, 
 wherein the primary 20 MHz channel is not punctured. 
 
     
     
       4. The method of  claim 1 , wherein when the broadband is a 320 MHz band including fifth to eighth 80 MHz subchannels,
 wherein the fifth 80 MHz subchannel includes a fourth 996 RU, 
 wherein the sixth 80 MHz subchannel includes a fifth 996 RU, 
 wherein the seventh 80 MHz subchannel includes a sixth 996 RU, 
 wherein the data field is received through second multiple RUs in which the fourth to sixth 996RUs are aggregated. 
 
     
     
       5. The method of  claim 4 , wherein the control field includes allocation information on the second multiple RUS,
 wherein the second multiple RUs are obtained by puncturing the eighth 80 MHz subchannel, 
 wherein each of the fourth to sixth 996RUs is a RU consisting of 996 tones. 
 
     
     
       6. The method of  claim 4 , wherein one of the fifth to eighth 80 MHz subchannels is a primary 80 MHz channel, and the remaining three subchannels except for the primary 80 MHz channel are secondary 80 MHz channels,
 wherein the primary 80 MHz channel is not punctured. 
 
     
     
       7. The method of  claim 1 , wherein when the broadband is a 320 MHz band including fifth to eighth 80 MHz subchannels,
 wherein the fifth 80 MHz subchannel includes a fourth 996 RU, 
 wherein the sixth 80 MHz subchannel includes a fifth 996 RU, 
 wherein the seventh 80 MHz subchannel includes a second 484 RU; 
 wherein the data field is received through third multiple RUs in which the fourth to fifth 996RUs and the second 484RUs are aggregated. 
 
     
     
       8. The method of  claim 7 , wherein the control field includes allocation information on the third multiple RUS,
 wherein the third multiple RUs are obtained by puncturing 484RU in the seventh 80 MHz subchannel and puncturing the eighth 80 MHz subchannel, 
 wherein each of the fourth to fifth 996RUs is a RU consisting of 996 tones, 
 wherein the second 484RU is an RU consisting of 484 tones. 
 
     
     
       9. The method of  claim 7 , wherein one of the fifth to eighth 80 MHz subchannels is a primary 80 MHz channel, and the remaining three subchannels except for the primary 80 MHz channel are secondary 80 MHz channels,
 wherein the primary 80 MHz channel includes a primary 40 MHz channel and a secondary 40 MHz channel, 
 wherein the primary 40 MHz channel or the primary 80 MHz channel is not punctured. 
 
     
     
       10. A receiving station (STA) in a wireless Local Area Network (LAN), the receiving STA comprising:
 a memory; 
 a transceiver; and 
 a processor operatively coupled to the memory and the transceiver, 
 wherein the processor is configured to:
 receive a Physical Protocol Data Unit (PPDU) through a broadband from a transmitting STA; and 
 
 decode the PPDU, 
 wherein the PPDU includes a control field and a data field, 
 wherein when the broadband is a 320 MHz band including first to fourth 80 MHz subchannels, 
 the first 80 MHz subchannel includes a first 996 resource unit (RU), 
 the second 80 MHz subchannel includes a second 996RU, 
 the third 80 MHz subchannel includes a third 996RU, 
 the fourth 80 MHz subchannel includes a first 484RU, and 
 wherein the data field is received through first multiple RUs in which the first to third 996RUs and the first 484RU are aggregated. 
 
     
     
       11. A method in a wireless Local Area Network (LAN), the method comprising:
 generating, by a transmitting station (STA), a Physical Protocol Data Unit (PPDU); and 
 transmitting, by the transmitting STA, the PPDU through a broadband to a receiving STA, 
 wherein the PPDU includes a control field and a data field, 
 wherein when the broadband is a 320 MHz band including first to fourth 80 MHz subchannels, 
 the first 80 MHz subchannel includes a first 996 resource unit (RU), 
 the second 80 MHz subchannel includes a second 996RU, 
 the third 80 MHz subchannel includes a third 996RU, 
 the fourth 80 MHz subchannel includes a first 484RU, and 
 wherein the data field is transmitted through first multiple RUs in which the first to third 996RUs and the first 484RU are aggregated. 
 
     
     
       12. The method of  claim 11 , wherein the PPDU is transmitted based on a non-Orthogonal Frequency Division Multiple Access (non-OFDMA) scheme,
 wherein the control field includes allocation information on the first multiple RUs, 
 wherein the first multiple RUs are obtained by puncturing 484RU in the fourth 80 MHz subchannel, 
 wherein each of the first to third 996RUs is a RU consisting of 996 tones, 
 wherein the 484RU is an RU consisting of 484 tones. 
 
     
     
       13. The method of  claim 11 , wherein one of the first to fourth 80 MHz subchannels is a primary 80 MHz channel, and the remaining three subchannels except for the primary 80 MHz channel are secondary 80 MHz channels,
 wherein the primary 80 MHz channel includes a primary 20 MHz channel, a secondary 20 MHz channel, and a secondary 40 MHz channel, 
 wherein the primary 20 MHz channel is not punctured. 
 
     
     
       14. The method of  claim 11 , wherein when the broadband is a 320 MHz band including fifth to eighth 80 MHz subchannels,
 wherein the fifth 80 MHz subchannel includes a fourth 996 RU, 
 wherein the sixth 80 MHz subchannel includes a fifth 996 RU, 
 wherein the seventh 80 MHz subchannel includes a sixth 996 RU, 
 wherein the data field is transmitted through second multiple RUs in which the fourth to sixth 996RUs are aggregated. 
 
     
     
       15. The method of  claim 14 , wherein the control field includes allocation information on the second multiple RUs,
 wherein the second multiple RUs are obtained by puncturing the eighth 80 MHz subchannel, 
 wherein each of the fourth to sixth 996RUs is a RU consisting of 996 tones. 
 
     
     
       16. A transmitting station (STA) in a wireless Local Area Network (LAN), the transmitting STA comprising:
 a memory; 
 a transceiver; and 
 a processor operatively coupled to the memory and the transceiver, 
 wherein the processor is configured to: 
 generate a Physical Protocol Data Unit (PPDU); and 
 transmit the PPDU through a broadband to a receiving STA, 
 wherein the PPDU includes a control field and a data field, 
 wherein when the broadband is a 320 MHz band including first to fourth 80 MHz subchannels, 
 the first 80 MHz subchannel includes a first 996 resource unit (RU), 
 the second 80 MHz subchannel includes a second 996RU, 
 the third 80 MHz subchannel includes a third 996RU, 
 the fourth 80 MHz subchannel includes a first 484RU, and 
 wherein the data field is transmitted through first multiple RUs in which the first to third 996RUs and the first 484RU are aggregated.